Iron Colorimeter HI721 Hanna Checker - Fresh water

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Iron Colorimeter HI721 Hanna Checker - Fresh water

100% Recommend this to a friend (1 of 1)

SKU: 208623

reg. $48.99

Special Price: $42.99



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Quick Overview

Determine the iron level in your fresh water. The Hanna HI721 Checker HC Handheld Colorimeter for Iron in fresh water bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next, remove sample and add reagent. Last, re-insert sample into the Hanna Iron Fresh Water Checker, press the button and read the results. Done.

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Full Details

HI721 Iron Colorimeter Manufacturer's Manual

HI721 Iron Colorimeter Manufacturer's Literature


  • Easier to use and more accurate than chemical test kits
  • Large, easy to read digits
  • Auto shut-off
  • Built-in timer for timed reaction readings
  • Dedicated to a single parameter
  • Designed to work with HANNA's reagents
  • Uses 10 mL glass cuvettes
  • Small Size, Big Convenience
  • Fits in the palm of your hand


  • Range:0.00 to 5.00 ppm
  • Resolution:0.01 ppm (mg/L)
  • Accuracy: ±0.04 ppm ±2% of reading at 25°C
  • Light Source: LED @ 525 nm
  • Light Detector: Silicon photocell
  • Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing
  • Battery Type: (1) 1.5V AAA
  • Auto-off: After 3 minutes of non-use and 10 seconds after reading
  • Dimensions: 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5")
  • Weight: 64 g (2.25 oz.)
  • Method:An adaptation of the EPA Phenantroline method 315 B, for natural and treated waters.


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1 Item

  • Accurate with some caveats By Aja on 2/27/2016

    Really accurate with .5ml syringe. The enclosed 1ml is difficult to read when you are using the .1ml tank water. Hanna sent me smaller syringe with easier to read graduations. Also for whatever reason (I can't explain why)if you use Hannas deionized water rather than RODI it's more accurate.

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